@@ -477,6 +477,9 @@ defaultStablePackages ghcVer requireHP = unPackageMap $ execWriter $ do
477477 -- https://github.com/fpco/stackage/issues/257
478478 addRange "Michael Snoyman" "aeson" "< 0.8"
479479
480+ -- https://github.com/fpco/stackage/issues/263
481+ addRange "Michael Snoyman" "semigroupoids" "< 4.1"
482+
480483 -- https://github.com/jgm/pandoc/issues/1442
481484 addRange "Michael Snoyman" "texmath" "<= 0.6.6.3"
482485